Thermo-meca analysis

Hi everyone,

I'm still working on simple models in order to compare Abaqus and Salome-Meca but i need your advice and help. Now i'm running a tensile test where the materials properties depend on the the temperature. Thus, to do this, i have tried two models (.comm are attached):

1/ I used CREA_CHAMP, CREA_RESU and AFFE_VARC to impose a temperature field to the mesh. This model converges with no difficulty but i'm not sure of the results...

2/ I have separated the problem in two parts, a mesh for the mechanical part and another for the thermic. Thus, i used PROJ_CHAMP to project the results of the thermic study on the mechanical mesh. This model has an error message that i don't understand, can someone take a look on the .mess and give me a feedback?

Another question, i don't really understand the difference between these two approaches, are they equivalent or one gives better results?

Thanks,

Dany

So i finally found the problem.

With a function for the conductivity, the affection of this property with DEFI_MATERIAU is THER_NL instead of THER_FO and a non-linear thermic calculation must be chose.